How to prevent cherry frost damage?

The cherry ripening period is from mid-May to mid-June, and it should be the best to eat from late May to June 20. Because the area is different, the temperature is not the same, and the mature time will be slightly different.

Cherry frost damage and prevention measures:

First, the earliest early cold injury occurred, which occurred before and after the Spring Festival during the dormant period, and caused mainly by the extremely low temperature caused by flower bud damage or dead trees. The early freezing injury is closely related to the late management and tree nutrition of big cherry.

Second, late frost damage occurred after the sprouting of large cherries to the young fruit period. It was caused by a sudden temperature drop or frost after the temperature rose, causing damage to flowers or young fruit. Night frost damage is closely related to the site condition of large cherry.

1 Choose a plot when setting up the park.

2 Strengthen fertilizer and water management. To increase the application of organic fertilizer, apply sufficient autumn basal fertilization to protect the leaves, and at the same time, pour frozen frozen water high tree antifreeze ability before freezing. Increase tree nutrient reserve. Strengthen the work of flood prevention and deterrence to stop tree weakness.

3 White, winter, use 10% lime to spray the whole tree or apply large branches. Prevent rising too quickly and suddenly cool down.

4 Watering or fuming, should pay attention to weather changes at any time after the cherry sprouts. If there is a low-temperature frost forecast, the orchard should be fully watered immediately, or be frozen in the orchard to dampen the smoke before the frost.

Night cream and prevention measures

Cherry flowering is often vulnerable to late blooms, especially cherry fields on low-lying plots.

Prevention measures are:

1, choose suitable garden to build the garden. Select leeward sunny, flat terrain, good soil and water conditions, should avoid the valley, basin and low-lying land.

2. It can be sprayed at the flowering time to spray 10kg of Kangkai per acre and spray 100kg, which can effectively prevent frost damage.

3. Spraying water and applying fertilizers outside the roots before frost can effectively regulate orchard air temperature to prevent and reduce frost damage.

4. Smoke should be smoked manually when the frost is present. Fumigation can not only increase the temperature of the orchard by 2-4 degrees, but also can prevent the reduction of the temperature by slowing down the temperature drop of the orchard through the smoke screen generated to prevent the heat from being distributed on the ground.

5, preparation and use of trunk whitening agent, trunk coating "five ingredients" has a significant effect of insulation and antifreeze. Specifically, the ratio of quick lime 10 kg + salt 2 kg + sulfur powder 1 kg + animal and vegetable oil 0.1 kg + water 20 kg. Before preparation, use 1/2 hydration to open the lime and salt, remove the ash, add sulfur powder, animal and vegetable oils and mix well.

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